Electronic apparatus comprising anti-theft anchor plate

ABSTRACT

According to one embodiment, an electronic apparatus includes a housing including a peripheral wall on which an opening is provided, and an anchor plate supported by the housing. The anchor plate is slidable between a first position, in which the anchor plate is accommodated within the housing, and a second position, in which the anchor plate projects from the housing through the opening. The anchor plate includes an aperture to which an anti-theft device may be attached, in a portion that is exposed outside the housing when the anchor plate is slid to the second position. The anchor plate is held in the second position by a stop mechanism when the anchor plate is slid at least to the second position.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is based upon and claims the benefit of priority from Japanese Patent Application No. 2009-144408, filed Jun. 17, 2009, the entire contents of which are incorporated herein by reference.

BACKGROUND

1. Field

Embodiments described herein relate generally to an electronic apparatus comprising an anchor plate to which an anti-theft tethering device called a Kensington Lock or security cable may be attached.

2. Description of the Related Art

A portable electronic apparatus such as a portable computer comprises a slot for a security lock. The slot is designed to allow an anti-theft tethering device called a Kensington Lock or security cable to be attached. The slot is provided in a peripheral wall of a housing that forms an outer shell of the electronic apparatus.

The tethering device comprises a stiff wire and a lock cylinder secured to one end of the wire. The lock cylinder includes a hook that can be inserted into the slot in the housing. The hook is rotatable to a locked position orthogonal the slot, using a key, and this rotation allows the hook to engage in the peripheral wall of the housing.

Accordingly, by inserting the hook of the lock cylinder into the slot of the housing and rotating the hook to the locked position after looping the wire around an office desk, for example, the electronic apparatus can be tethered to the desk with the wire. This prevents the apparatus from being relocated or removed, and guards against its theft.

In order to increase the portability and appeal of products, slimness of the housings of recent electronic apparatuses has become an important feature. On an electronic apparatus having a slim, compact housing it is difficult to find a space where the hook of a lock cylinder can be engaged with the housing, and the user may have difficulty attaching a tethering device.

To remedy this problem, an electronic apparatus disclosed in Jpn. Pat. Appln. KOKAI Publication No. 2000-56857 discloses a sliding plate between the upper surface of a housing and a plurality of key tops. The sliding plate includes a plurality of operation prevention portions corresponding to the key tops. The sliding plate is slidable between a first position and a second position. In the first position, the operation prevention portions of the sliding plate fit into the space at the back of the key tops. In the second position, the operation prevention portions of the sliding plate are located below the edges of the key tops.

In the state in which the sliding plate has been slid to the second position, one end of the sliding plate protrudes from the side of the housing. A through-hole is formed in the protruding end of the sliding plate. The through-hole is designed to accommodate the shackle of a padlock, and is contiguous with a side surface of the housing. The padlock includes a chain or wire for attachment to a fixture such as a desk.

Accordingly, by sliding the sliding plate from the first to the second position and withdrawing the end of the sliding plate in which the through-hole is formed from the housing, the padlock can be attached to the sliding plate. It is thus possible to satisfactorily attach the padlock to the housing even if the housing is formed to be as thin as possible.

According to the above-described document, when the sliding plate to which the padlock is attached is slid from the second to the first position, the padlock is made to contact the side surface of the housing. This prevents the sliding plate from sliding to the first position. Thereby, the operation prevention portions of the sliding plate remain under the edges of the key tops, and the edges of the key tops abut the operation prevention portions even if one tries to press down the key tops. Accordingly, the keyboard is locked in an inoperative state.

According to the electronic apparatus disclosed in the above-described document, sliding of the sliding plate is limited by making the padlock contact the side surface of the housing. With this configuration, however, the side surface of the housing, which the padlock contacts, is susceptible to damage.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

A general architecture that implements the various features of the invention will now be described with reference to the drawings. The drawings and the associated descriptions are provided to illustrate embodiments of the invention and not to limit the scope of the invention.

FIG. 1 is a perspective view of an exemplary portable computer according to an embodiment;

FIG. 2 is an exemplary perspective view of a state in which a tethering device is attached to an anchor plate slid to a second position;

FIG. 3 is an exemplary perspective view from below a housing of the state in which the tethering device is attached to the anchor plate slid to the second position;

FIG. 4 is an exemplary perspective view of a state in which the anchor plate is incorporated into a first housing element;

FIG. 5 is an exemplary enlarged perspective view of area A in FIG. 4;

FIG. 6 is an exemplary cross-sectional view of a state in which the anchor plate is attached to the first housing element;

FIG. 7 is an exemplary plan view of a state in which the anchor plate is held in a first position;

FIG. 8 is an exemplary plan view of a state in which the anchor plate is slid to an intermediate position between the first position and the second position;

FIG. 9 is an exemplary plan view of a state in which the anchor plate is held in the second position; and

FIG. 10 is an exemplary plan view illustrating a positional relationship between an aperture of the anchor plate held in the first position and an opening in the housing.

DETAILED DESCRIPTION

Various embodiments will be described hereinafter with reference to the accompanying drawings. In general, according to one embodiment, an electronic apparatus comprises a housing including a sidewall in which an opening is provided, and an anchor plate supported by the housing. The anchor plate is slidable between a first position in which the anchor plate is accommodated within the housing and a second position in which the anchor plate projects from the housing through the opening. An aperture to which an anti-theft tethering device may be attached is provided in a portion included in the anchor plate and exposed outside the housing when the anchor plate is slid to the second position. The anchor plate is held in the second position by a stop mechanism when the anchor plate is slid at least to the second position.

FIG. 1 discloses a portable computer 1, which is an example of the electronic apparatus. The portable computer 1 comprises a computer main body 2 and a display module 3.

The computer main body 2 comprises a housing 4. The housing 4 has the shape of a flat box including a bottom wall 4 a, an upper wall 4 b, a left sidewall 4 c, a right sidewall 4 d, a front wall 4 e, and a rear wall 4 f. The left sidewall 4 c, the right sidewall 4 d, the front wall 4 e, and the rear wall 4 f form a continuous peripheral wall for the housing 4. As shown in FIG. 4, the left sidewall 4 c and the right sidewall 4 d project upward from the side edges of the bottom wall 4 a, and form a circular arc. The upper wall 4 b supports the keyboard 5.

The housing 4 comprises a first housing element 6 and a second housing element 7. The first housing element 6 includes the bottom wall 4 a, the left sidewall 4 c, the right sidewall 4 d, the front wall 4 e, and the rear wall 4 f. The second housing element 7 includes the upper wall 4 b. The first housing element 6 and the second housing element 7 are joined together by means of a plurality of screws (not shown).

As shown in FIG. 1, the display module 3 comprises a display housing 10 and a liquid crystal display panel 11. The display housing 10 takes the form of a flat box approximately the same size as the housing 4 of the computer main body 2. The liquid crystal display panel 11 is accommodated in the display housing 10 and includes a screen 11 a, on which text and graphics may be displayed. The screen 11 a is exposed outside the display housing 10 from the front surface of the display housing 10.

The display module 3 is supported to a rear end of the computer main body 2 via a hinge (not shown). Thereby, the display module 3 is rotatable between a closed and an open position. In the closed position, the display module 3 lies on the computer main body 2, so as to cover the keyboard 5. In the open position, the display module 3 is raised from the rear end of the computer main body 2 so as to expose the keyboard 5 and the screen 11 a.

As shown in FIGS. 4-6, the housing 4 of the computer main body 2 comprises an anchor plate 12. The anchor plate 12 is a flat square metal plate. The anchor plate 12 includes a pair of side edges 13 a, 13 b, an end edge 13 c connecting one pair of ends of the side edges 13 a, 13 b, and a complementary end edge 13 d connecting the other pair of ends of the side edges 13 a, 13 b. The side edges 13 a, 13 b extend parallel to each other along the lateral direction of the housing 4.

The anchor plate 12 includes a first slot 15 a and a second slot 15 b. The first and second slots 15 a, 15 b are arranged parallel to each other at intervals along the side edges 13 a, 13 b of the anchor plate 12.

The anchor plate 12 is integrally incorporated into the right side portion of the rear end of the first housing element 6. FIGS. 5-9 disclose a supporting structure of the anchor plate 12. As shown in FIGS. 6 and 8, the bottom wall 4 a of the first housing element 6 comprises a pair of guides 16 a, 16 b and a pair of support rails 17 a, 17 b. The guides 16 a, 16 b are raised from the inner surface of the bottom wall 4 a, so as to extend along the lateral direction of the housing 4, and are arranged parallel to each other at intervals. One pair of ends of the guides 16 a, 16 b are continuous with the inner surface of the right sidewall 4 d.

An opening 18 is provided on the right sidewall 4 d. The opening 18 takes the form of a slot extending along the right sidewall 4 d, and is positioned between the guides 16 a, 16 b. The opening 18 is open downward from the right side of the housing 4 along the curve of the right sidewall 4 d.

The support rails 17 a, 17 b are raised from the inner surface of the bottom wall 4 a between the guides 16 a, 16 b. The support rails 17 a, 17 b extend along the lateral direction of the housing 4 and are arranged parallel to each other at intervals.

Further, a guide post 19 and a boss 20 are formed on the inner surface of the bottom wall 4 a. The guide post 19 is raised from the bottom wall 4 a between the support rails 17 a, 17 b. The boss 20 is adjacent to the guide post 19 between the support rails 17 a, 17 b. The boss 20 projects upward from the bottom wall 4 a and is open toward below the first housing element 6.

The anchor plate 12 is slidably mounted on the support rails 17 a, 17 b between the guides 16 a, 16 b. Thereby, the side edges 13 a, 13 b of the anchor plate 12 slidably contact the guides 16 a, 16 b, and the guide post 19 slidably engages with the first slot 15 a of the anchor plate 12.

As shown in FIG. 6, a holding plate 22 is arranged on the anchor plate 12. The holding plate 22 slidably interposes the anchor plate 12 in cooperation with the support rails 17 a, 17 b. The holding plate 22 includes a columnar protruding portion 23. The protruding portion 23 projects from a lower surface of the holding plate 22 and slidably engages with the second slot 15 b of the anchor plate 12.

Further, the protruding portion 23 matches the boss 20 on the bottom wall 4 a. A screw 24 is inserted into the boss 20. The screw 24 is driven into the protruding portion 23 from below the first housing element 6, and joins the holding plate 22 to the first housing element 6.

Thereby, the anchor plate 12 is slidably supported by the housing 4 along the width of the housing 4, being guided by the portion accommodating the first slot 15 a and the guide post 19 and the portion accommodating the second slot 15 b and the protruding portion 23. More specifically, the anchor plate 12 is slidable between a first position, in which the anchor plate 12 is accommodated within the housing 4, and a second position, in which the anchor plate 12 projects from the housing 4 through the opening 18.

FIG. 7 shows a state in which the anchor plate 12 is slid to the first position. In the first position, the guide post 19 abuts one end of the first slot 15 a, and the protruding portion 23 abuts one end of the second slot 15 b. FIG. 9 shows the state in which the anchor plate 12 is slid to the second position. In the second position, the guide post 19 abuts the other end of the first slot 15 a, and the protruding portion 23 abuts the other end of the second slot 15 b. Accordingly, the range in which the anchor plate 12 slides is determined by the lengths of the first and second slots 15 a, 15 b.

When the anchor plate 12 is slid to the first position, the complementary end edge 13 d of the anchor plate 12 is positioned in the opening 18. When the anchor plate 12 is slid to the second position, the region included in the anchor plate 12 and extending from the complementary end edge 13 d of the anchor plate 12 to the intermediate portion of the anchor plate 12 projects from the housing 4 through the opening 18.

As shown in FIGS. 5 and 7, a first notch portion 26 a and a second notch portion 26 b are formed in the one side edge 13 a of the anchor plate 12. The first notch portion 26 a and the second notch portion 26 b are apart from each other on the direction along which the anchor plate 12 slides.

Further, a stop mechanism 27 is provided on the bottom wall 4 a of the first housing element 6. The stop mechanism 27 is designed to hold the anchor plate 12 in the first position and the second position in cooperation with the first and second notch portions 26 a, 26 b.

As shown in FIGS. 6 and 7, the stop mechanism 27 comprises a slider 28 and a compression coil spring 29. The slider 28 is supported by the bottom wall 4 a. The bottom wall 4 a includes a slide guide 30 in the proximity of one of the guides 16 a, as shown in FIG. 5. The slide guide 30 defines a guide groove 31 extending in the depth direction of the first housing element 6 so as to be orthogonal to the direction along which the anchor plate 12 slides.

The guide groove 31 faces one of the side edges 13 a of the anchor plate 12 via a continuous opening 32 made in one of the guides 16 a. The continuous opening 32 matches the first notch portion 26 a of the anchor plate 12 when the anchor plate 12 is slid to the first position. Similarly, the continuous opening 32 matches the second notch portion 26 b of the anchor plate 12 when the anchor plate 12 is slid to the second position.

The slider 28 engages with the guide groove 31 of the slide guide 30, and is supported by the first housing element 6, such that the slider 28 can reciprocate orthogonally to the sliding direction of the anchor plate 12. The slider 28 includes an engaging portion 34, which engages with the first notch portion 26 a and the second notch portion 26 b of the anchor plate 12. The engaging portion 34 is designed to proceed between the guides 16 a, 16 b via the continuous opening 32, and recede from between the guides 16 a, 16 b.

As shown in FIG. 6, the engaging portion 34 includes a slot 35, into which one of the side edges 13 a of the anchor plate penetrates. In other words, the engaging portion 34 interposes the side edges 13 a of the anchor plate 12 in the thickness direction of the anchor plate 12. Further, the compression coil spring 29, which is an example of an elastic member, urges the slider 28 in the direction of approaching the anchor plate 12.

When the anchor plate 12 is slid to the first position, the engaging portion 34 of the slider 28 elastically engages with the first notch portion 26 a of the anchor plate 12. This engagement allows the anchor plate 12 to be held in the first position. Similarly, when the anchor plate 12 is slid to the second position, the engaging portion 34 of the slider 28 elastically engages with the second notch portion 26 b of the anchor plate 12. This engagement allows the anchor plate 12 to be held in the second position.

As shown in FIGS. 7 and 8, the first notch portion 26 a includes an edge portion 38, which is adjacent to the second notch portion 26 b. The edge portion 38 is designed to restrict free movement of the anchor plate 12 by abutting the engaging portion 34 when it is attempted to withdraw the anchor plate 12 from the first to the second position. The edge portion 38 is inclined in the direction of approaching the second notch portion 26 b from the terminal end of the first notch portion 26 a.

As shown in FIGS. 8 and 9, the second notch portion 26 b includes an edge portion 39, which is adjacent to the first notch portion 26 a. The edge portion 39 is designed to restrict free movement of the anchor plate 12 by abutting the engaging portion 34 when it is attempted to depress the anchor plate 12 from the second to the first position. The edge portion 39 is inclined in the direction of approaching the first notch portion 26 a from the terminal end of the second notch portion 26 b.

As shown in FIGS. 1 and 3, the anchor plate 12 includes an aperture 41 for a security lock. The aperture 41 is adjacent to the complementary end edge 13 d of the anchor plate 12 and is in the form of an elongated opening parallel to the complementary end edge 13 d. The aperture 41 is completely exposed outside the housing 4 when the anchor plate 12 is slid to the second position. Further, when the anchor plate 12 is slid to the first position, a portion of the aperture 41 is exposed toward below the housing 4 from the opening 18.

The aperture 41 is designed to allow, for example, an anti-theft tethering device 42 called a Kensington Lock or security cable to be attached. As best illustrated in FIGS. 2 and 3, the tethering device 42 includes a stiff metal cable 43 capable of resisting being deliberately severed, and a lock cylinder 44 secured to one end of the cable 43.

The lock cylinder 44 includes a T-shaped hook 45 that can be inserted into the aperture 41. The hook 45 is rotatable through 90 degrees between an unlocked and a locked position by turning a key 46 inserted into the lock cylinder 44.

Next, the procedure of attaching the tethering device 42 to the portable computer 1 will be described.

Before the tethering device 42 is attached to the portable computer 1, the anchor plate 12 is slid to the first position and accommodated within the housing 4. In the first position, as shown in FIG. 7, the engaging portion 34 of the slider 28 engages with the first notch portion 26 a of the anchor plate 12, and holds the anchor plate 12 in the first position. At the same time, as shown in FIG. 10, the portion of the aperture 41 of the anchor plate 12 is exposed toward below the housing 4 from the opening 28.

To slide the anchor plate 12 from the first to the second position, the portion of the aperture 41 exposed outside the opening 18 is caught with a finger or the tip of a tool such as a screwdriver, and the anchor plate 12 is withdrawn from the opening 18.

In this case, the edge portion 38 of the first notch portion 26 a abuts the engaging portion 34 of the slider 28, and a resistance is temporarily produced to prevent the anchor plate 12 from being withdrawn. The edge portion 38, however, is inclined toward the second notch portion 26 b, which is positioned on the opposite side to the direction in which the anchor plate 12 is withdrawn. Accordingly, if the anchor plate 12 is strongly pulled when the edge portion 38 abuts the engaging portion 34, the engaging portion 34 is disengaged from the first notch portion 26 a, against the urging force of the compression coil spring 29, according to the inclination of the edge portion 38.

Thereby, engagement of the engaging portion 34 with the first notch portion 26 a is automatically released, following the withdrawing operation of the anchor plate 12. Thereby, the anchor plate 12 can be easily slid from the first position toward the second position.

As shown in FIG. 9, when the anchor plate 12 reaches the second position, the second notch portion 26 b of the anchor plate 12 faces the continuous opening 32, and the engaging portion 34 of the slider 28 engages with the second notch portion 26 b. This engagement allows the anchor plate 12 to be held in the second position.

When the anchor plate 12 is slid to the second position, the end portion of the anchor plate 12 including the aperture 41 projects from the side of the housing 4. Accordingly, the hook 45 of the tethering device 42 can be inserted into the aperture 41 from above the anchor plate 12.

When the hook 45 is rotated from the unlocked to the locked position after being inserted into the aperture 41, the hook 45 is orthogonal to the aperture 41 and is engaged with the anchor plate 12. Thereby, the lock cylinder 44 is attached to the anchor plate 12.

Accordingly, by wrapping the cable 43 around a fixture such as a desk, and then engaging the hook 45 of the lock cylinder 44 with the anchor plate 12 according to the above-described procedure, the portable computer 1 can be tethered to the fixture. In this way, the computer 1 is prevented from being relocated or removed, and theft of the portable computer 1 can be prevented.

As shown in FIG. 2, when the lock cylinder 44 is attached to the anchor plate 12, the lock cylinder 44 is oriented on the anchor plate 12 such that its axis is vertical. Further, a predetermined gap g is secured between the outer peripheral surface of the lock cylinder 44 and the sidewall 4 d of the housing 4. The gap g prevents the housing 4 from interfering with the lock cylinder 44. In other words, the anchor plate 12 is withdrawn to a side of the housing 4 up to a position in which the lock cylinder 44 connected to the aperture 41 does not contact the sidewall 4 d of the housing 4.

On the other hand, when the hook 45 is rotated from the locked to the unlocked position, the tethering device 42 can be detached from the anchor plate 12. When the tethering device 42 is detached from the anchor plate 12, the anchor plate 12 is pushed toward the first position from the second position, such that the anchor plate 12 does not interfere.

In this case, since the edge portion 39 of the second notch portion 26 b abuts the engaging portion 34 of the slider 28, as shown in FIG. 9, a resistance is temporarily produced to prevent depression of the anchor plate 12. The edge portion 39, however, is inclined toward the first notch portion 26 a, which is positioned on the opposite side to the direction in which the anchor plate 12 is pressed.

Accordingly, by strongly depressing the anchor plate 12 when the edge portion 39 abuts the engaging portion 34, the engaging portion 34 is disengaged from the second notch portion 26 b against the urging force of the pressure coil spring 29, according to the inclination of the edge portion 39. Thereby, following the depressing operation of the anchor plate 12, engagement of the engaging portion 34 with the second notch portion 26 b is automatically released. Thereby, the anchor plate 12 can be easily slid to the first position from the second position.

When the anchor plate 12 reaches the first position, the engaging portion 34 of the slider 28 engages with the first notch portion 26 a. This engagement allows the anchor plate 12 to be held in the first position and accommodated within the housing 4.

According to the above-described configuration, by withdrawing the end portion of the anchor plate 12 including the aperture 41 from the housing 4, the tethering device 42 can be connected to the aperture 41. Accordingly, even if the portable computer 1 has a thickness less than the outer diameter of the lock cylinder 44, the lock cylinder 44 can be reasonably connected to the housing 4.

Further, by sliding the anchor plate 12 to the first position when the anchor plate 12 is not used, the anchor plate 12 can be accommodated within the housing 4. Thereby, the anchor plate 12 does not interfere and the appearance of the portable computer 1 is improved.

Moreover, when the anchor plate 12 is slid to the second position, the engaging portion 34 of the slider 28 engages with the second notch portion 26 b of the anchor plate 12, and the anchor plate 12 is held in the second position. In addition, since the gap g exists between the lock cylinder 44 connected to the anchor plate 12 and the housing 4, constant positional relationship between the lock cylinder 44 and the housing 4 is maintained.

Accordingly, the lock cylinder 44 and the sidewall 4 d of the housing 4 do not contact each other, and the housing 4 is prevented from being damaged. Accordingly, the appearance of the portable computer 1 can be preserved.

According to the embodiment, the engaging portion 34 of the slider 28 engages with the first notch portion 26 a of the anchor plate 12, and thereby the anchor plate 12 is held in the first position. Accordingly, while the portable computer 1 is being carried, the anchor plate 12 is prevented from projecting from the housing 4 and is thus protected against damage.

Furthermore, the engaging portion 34 of the slider 28 slidably interposes the side edge 13 a of the anchor plate 12, in which the first and second notch portions 26 a, 26 b are formed. Thereby, constant positional relationship between the engaging portion 34 and the anchor plate 12 can always be maintained. Accordingly, engagement of the engaging portion 34 with the first notch portion 26 a and engagement of the engaging portion 34 with the second notch portion 26 b can be accurately performed.

The invention is not limited to the above-described embodiment and may be embodied with various modifications without departing from the spirit of the invention.

For example, the first notch portion for holding the anchor plate in the first position may be omitted, and a magnet may be provided within the housing, instead of the first notch portion. The magnet adsorbs the anchor plate when the anchor plate is slid to the first position, and holds the anchor plate in the first position.

The anchor plate may be designed to project from the front or back of the housing, as well as from the side of the housing.

Furthermore, the anchor plate is not limited to the structure of being slid between the first position and the second position, and may be rotatably supported by the housing between the first position and the second position, for example.

While certain embodiments of the inventions have been descried, these embodiments have been presented by way of example only, and are not intended to limit the scope of the invention. Indeed, the novel methods and systems described herein may be embodied in a variety of other forms; furthermore, various omissions, substitutions and changes in the form of the methods and systems described herein may be made without departing from the spirit of the inventions. The accompanying claims and their equivalents are intended to cover such forms or modifications as would fall within the scope and spirit of the inventions. 

1. An electronic apparatus comprising: a housing comprising a peripheral wall; an opening on the peripheral wall; an anchor plate supported by the housing, the anchor plate configured to slide between a first position, in which the anchor plate is within the housing, and a second position, in which the anchor plate is not within the housing, and comprising a portion exposed outside the housing when the anchor plate is in the second position, the portion comprising an aperture configured to attach an anti-theft tethering device; and a stopper configured to stop the anchor plate in the second position when the anchor plate is slid to the second position.
 2. The electronic apparatus of claim 1, wherein the anchor plate comprises a side edge along a direction in which the anchor plate slides, and a notch portion at the side edge, and the stopper comprises an engaging portion configured to restrict sliding of the anchor plate by causing the anchor plate to engage with the notch portion when the anchor plate is slid to the second position.
 3. The electronic apparatus of claim 2, wherein the stopper comprises an elastic portion configured to exert a force to move the engaging portion toward the anchor plate.
 4. The electronic apparatus of claim 3, wherein the notch portion of the anchor plate comprises an edge portion that contacts the engaging portion when the anchor plate is slid from the second position to the first position, and the edge portion is inclined in a direction in which the engaging portion is disengaged from the notch portion, according to the sliding of the anchor plate toward the first position.
 5. The electronic apparatus of claim 1, wherein a portion of the aperture is exposed outside the housing from the opening when the anchor plate is slid to the first position.
 6. The electronic apparatus of claim 1, further comprising a holding plate configured to hold the anchor plate in the housing, the holding plate comprising a protruding portion configured to slidably engage with a slot in the anchor plate parallel to a direction along which the anchor plate slides.
 7. The electronic apparatus of claim 1, wherein a gap is between the tethering device and the peripheral wall of the housing in a state in which the tethering device is connected to the aperture in the anchor plate slid to the second position.
 8. An electronic apparatus comprising: a housing comprising a peripheral wall; an opening on the peripheral wall; an anchor plate supported by the housing, the anchor plate configured to slide between a first position, in which the anchor plate is within the housing, and a second position, in which the anchor plate is not within the housing, and comprising an aperture configured to attach an anti-theft tethering device in a portion exposed outside the housing when the anchor plate is slid to the second position, and a first notch portion and a second notch portion on a side edge parallel to a direction along which the anchor plate slides; and a stopper configured to stop the anchor plate in the first position when the anchor plate is slid to the first position by causing the anchor plate to engage with the first notch portion, and to stop the anchor plate in the second position when the anchor plate is slid to the second position by causing the anchor plate to engage with the second notch portion.
 9. The electronic apparatus of claim 8, wherein the stopper comprises an engaging portion configured to restrict sliding of the anchor plate by causing the anchor plate to engage with the first notch portion and the second notch portion, and an elastic portion configured to exert a force to move the engaging portion toward the anchor plate.
 10. The electronic apparatus of claim 9, wherein the first notch portion of the anchor plate comprises an edge portion that contacts the engaging portion when the anchor plate is slid from the first position to the second position, and the edge portion is inclined in a direction in which the engaging portion is disengaged from the first notch portion, according to the sliding of the anchor plate toward the second position.
 11. The electronic apparatus of claim 10, wherein the second notch portion of the anchor plate comprises an edge portion that contacts the engaging portion when the anchor plate is slid from the second position to the first position, and the edge portion is inclined in a direction in which the engaging portion is disengaged from the second notch portion, according to the sliding of the anchor plate toward the first position.
 12. An electronic apparatus comprising: a housing comprising a peripheral wall; an opening on the peripheral wall; an anchor plate supported by the housing, the anchor plate configured to move between a first position, in which the anchor plate is within the housing, and a second position, in which the anchor plate is not within the housing, and comprising a portion that is exposed outside the housing when the anchor plate is moved to the second position, the portion comprising an aperture configured to attach an anti-theft tethering device; and a stopper configured to stop the anchor plate in the second position when the anchor plate is moved to the second position. 